1. Sex: This is the most common meaning of "root" in Australia, and it's considered a slang term for having sexual intercourse.
2. To take root: This meaning is more literal and refers to the act of a plant's roots growing into the ground.
3. To root for someone/something: This meaning is used to express support for a person or team, similar to the English expression "cheer for."
4. Root around: This refers to searching or rummaging through something.
5. Root canal: This is a dental procedure and has the same meaning in Australia as it does in other English-speaking countries.
It's important to be aware of the context when interpreting the word "root" in Australia, as its meaning can vary significantly.